Scholarship Repository: Recent submissions
Now showing items 1-20 of 1458
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Design of a Compact Helical Counterflow Heat Exchanger
(2017-06)Compact heat exchangers are desirable in many aerospace applications. New additive manufacturing approaches, such 3D printing, have enabled the fabrication of heat exchange devices utilizing geometries that cannot be ... -
Concept of Operations and High Level Requirements Framework for the Development of a Computational Tool for Bridge Deterioration Analysis
(2017-07)In developing the lifecycles of a system, maintenance and support must be considered. Associated with this portion of the life cycle are periods between needs of maintenance and the cost of each type of maintenance. ... -
Notes and Trends
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A normal supermassive black hole in NGC 1277
(2016-03-01)The identification of galaxies with “overly massive” black holes requires two measurements: a black hole mass (Mbh) and a host spheroid mass (Msph,*). Here we provideOur new multi-Gaussian expansion (MGE) models and Jeans ... -
Use of ground penetrating radar for determination of water table depth and subsurface soil characteristics at Kennedy Space Center
(2013-10-24)Sustainable use and management of natural resources require strategic responses using non-destructive tools to provide spatial and temporal data for decision making. Experiments conducted at John F. Kennedy Space Center ... -
Runaway breakdown in the Jovian atmospheres
(2006-11-30)Using detailed Monte Carlo calculations, the properties of runaway breakdown in the atmospheres of the four gas giant planets in our solar system are investigated, and the runaway avalanche lengths and average runaway ... -
Quantitative constraints on the transport properties of hot partonic matter from semi-inclusive single high transverse momentum pion suppression in Au+Au collisions at √sNN = 200 GeV
(2008-06-24)The PHENIX experiment has measured the suppression of semi-inclusive single high-transverse-momentum π0's in Au+Au collisions at √sNN = 200 GeV. The present understanding of this suppression is in terms of energy loss of ... -
Photon-hadron jet correlations in p+p and Au+Au collisions at √sNN = 200 GeV
(2009-08-31)We report the observation at the Relativistic Heavy Ion Collider of suppression of back-to-back correlations in the direct photon+jet channel in Au+Au relative to p+p collisions. Two-particle correlations of direct photon ... -
Wide binary systems and the nature of high-velocity white dwarfs
(2002-08)We present measured radial velocities and complete space motions for 116 white dwarf stars with M dwarf companions. Thirteen pairs have " halo-like " velocities. According to a recent study by Oppenheimer et al., all these ... -
A new look at the local white dwarf population
(2008-04)We have conducted a detailed new survey of the local population of white dwarfs lying within 20 pc of the Sun. A new revised catalog of local white dwarfs containing 122 entries (126 individual degenerate stars) is presented. ... -
The white dwarfs within 20 parsecs of the sun: Kinematics and statistics
(2009-12)We present the kinematical properties, distribution of spectroscopic subtypes, and stellar population subcomponents of the white dwarfs within 20 pc of the Sun. We find no convincing evidence of halo white dwarfs in the ... -
Broadband optical observations of BL lacertae during the 1997 outburst
(1998-06)We present BVRI observations of BL Lacertae during its recent outburst. These observations, made during a 3 month period, cover a significant portion of the optical flare. The reduced data are displayed as light curves and ...